var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
const session = require('express-session');
const MongoStore = require('connect-mongo');

var indexRouter = require('./routes/account/account');
var authRouter = require('./routes/web/index');
const config = require('./config/config');
const {DBHOST, DBPORT, DATABASE} = config;


var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(session({
  name:'sid',//设置返回cookie的名字
  secret:'cty',//设置参与加密字符串
  saveUninitialized:false,//是否每次请求都设置一个cookie用来存储session的id
  resave:true,//是否在每次请求时重新保存session
  store:MongoStore.create({
    mongoUrl:`mongodb://${DBHOST}:${DBPORT}/${DATABASE}`//mongodb的连接
  }),
  cookie:{
    httpOnly:true,//开启后端后js无法操作
    maxAge:1000*60*60*24*7//这一条时控制sessionID的过期时间!!!!
  }
}));
app.use('/', indexRouter);
app.use('/', authRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  res.render('404');
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
